Peters



2 Sheets-Sheet 1. 0. BLOCHM-ANN.

MUSICAL BOX.

Patented Nov. 29, 1887.

immmmnumm (No Model.)

mm. s l Y WL Z n e Nei.-

N. Pneus. Phaw-Lnmgmpnr. wnmngum. u. c.

(No Mod`e1.) 2 Sheets-Sheet 2. 0. P. LOCHMANN.

MUSICAL B0X..

No. 374,127;` Patented Nov.,29, 18,87. Y

UNITED STATES PATENT OFFICE.'

OSCAR PAUL LOOHMAN, OF GOHLIS, NEAR LEIPSIO, SAXONY, GERMANY.

MUSICAL BOX.

SPE CIPICATION forming part of Letters Patent. No. 374,127, datedNovember 29, 1887.

Application filed September 8, 1857. Serial No. 249,132. (No model.)

To all whom it may concern- Be it known that I, Oscan- PAUL Loon-v MANN,a`subject of the King of Prussia, residing at Gohlis, near Leipsic, inthe Kingdom of Saxony, German Empire, have invented new and usefulImprovements in Musical Boxes, of which the following is aspecification.

This invention has for its object to provide novel means for rotatingthe circular noteplate of a music-box; and to such end the inventionconsists in the features of construction and combination of devices,hereinafter described and claimed.

Figure l of the accompanying drawings is a plan view of themusical box.Fig. 2 shows a section on k 3/ of Fig. 1. Figs. 3 and 4. show thearrangement of the driving mechanism on a larger scale than Figs. l and2. Figs. 5, 6, and 7 are modifications of the driving contrivance shownin Figs. 3 and 4.

The base-plate c has in its center a nipple, b, cast in one piece withit and provided with a threaded'bolt, e. The nipple b serves to receivethe note-plate p, secured by a nut, d. The note plate extends through alateral slot in a nipple, e, which is also formed in one with thebase-plate a. The nipple e is vertically bored out to receive thecrank-shaftf, which is formed as a driving-shaft, and for that purposeprovided with teeth engaging teeth arranged on the circumference of thenote-plate, so that by turning the crank the nete-plate is directlyrotated by the crank-shaft.

Fig. 5 shows a modification of the abovedescribed construction. Thenote-plate is not conducted in a slot on the nipples, but on the uppersurface of the nipple. The shaftfis in this case provided with a collar,m, lying with an elastic washer, n, upon the note-platep. In turning thecrank a pressure is exerted on the shaft f, which pressure istransmitted by the elastic washer to the note-plate p, so that thelatter is conducted between the collar m and the nipple e. Any vibrationof the note-plate is avoided by this arrangement, which, moreover, hasthe advantage that the note-plate can more easily be putin and changed,as after the removal of the crank the note-plate does not nd anyresistance on its periphery.

Figs. 6 and 7 show another modication. The teeth of the note-platep,aswell as of the shaftf, are here dispensed with. The rotation of theplatep is obtained here by friction, the crank-shaft f being providedwith a collar, m, which, by means of a washer, n, of leather or of anyother suitable material,presses on the note-platep and putsit inrotation. In order to prevent the note-plate p from being pressed tootightly against the upper surface of the nipple e, a small wheel, r, isarranged in the nipple on which the note-plate slides.

I claim- 1. The combination,with the circular noteplate of a music-box,of a base-plate, a vertical tubular nipple, and arotatingcrankshaftjournaled vertically in said nipple, and having means toengage and rotate the note-plate, substantially as described.

2. The combination, in a music-box, of a base-plate having nipples bande, the circular note-plate p, centrally mounted on one nipple, and acrank-shaft jour-naled within the open nipple and engaging thenote-plate to rotate the latter, substantially as described.

3. The combination of the base-plate, the tubular nipple having alateral slot, the circular note-plate extending into said'slot, and

the rotating vertical crank-shaft j ournaled in the nipple and engagingthe note-plate to rotate the same, substantially as described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

OSCAR PAUL LOCHMANN.

Witnesses:

CARL BORNGEAEBER, HUGO TELLER.

